I've had 2 gazelles. Both were "better" models over $300. The first I used for maybe a year, worked up a good sweat and did it for an hour at a time. The pads on the back of the foot rests break off easily, and the heart rate monitor thing is cheap and unreliable. Eventually I wore the thing out and it broke. The 2nd one, I've hardly used, its a piece of junk, and I think there's a recall on it. I'd like to use it but its so squeaky and either needs worked on or its junk, because it acts like its going to break. I'm curious about treadmills too, but reviews I've read are also mixed and I don't want to invest in a piece of junk. I still would like to find something to use in the house or during winter at the very least.